Picker



C. W. YELM Oct.- 14, 1941.

PICKER Filed March 8, 1941 Fla! INVENTOR. CHARLES "(YELM Patented Oct. 14, 1941 PICKER;

Charles Walter Yelm, Denver, 0010., assignor to The Gates Rubber Company, Denver, Colo., a

corporation of Colorado Application March 8, 1941, Serial No. 382,366

1 Claim.

This invention relates to improvements in pickers of the type employed with power operated looms.

In power operated looms the shuttle is driven' back and forth through the shed by means comprising a picker staff that is pivoted at one end to the loom and operated by a suitable cam mechanism. The picker staffs are provided with' pickers which are preferably formed from rub- Figure is a fragmentary view similar to' that shown in Figure 2 showing the relative tilting action of the picker and shuttle in one position;

and

Figure 5 and shows the other limit of the tilting action.

The relative angles of tilting as illustrated in Figures 5 and 6 have been somewhat exaggerated to more clearly disclose the operation.

In the drawing reference numeral l0 designates a floor or other base on which a power operated loom is supported. Reference numeral ll designates the lower end of a loom member berized fabric and are provided on the leading I2, while reference numeral I3 designates a shutsides with depression in which the point of the tle receiving shelf one of which is positioned at shuttle is received. In the usual form of picker each'end of the shed [4. The picker staff has the depression for receiving the shuttle point is been designated by reference numeral l5 and has rounded and conical and of such size that it fits been shown as pivoted at I6 to a bracket H he e of the Shuttle quite g y. Since the that extends outwardly from the loom frame. picker stafi oscillates about a pivo the p c Numeral l8 designates a picker sweep which is moves alongthe arc of a circle and since the controlled in its operation by a cam mechanism shu tle r ts' a pp it w tilt rel tiv that, has not been illustrated. The shuttle has to the picker in the plane 0f the Shuttle Staff been designated by reference numeral I9 and movement. The arcuate movement of the picker, the picker b 1 20, h picker h th while the shuttle is positioned in the depression, shape Shown in Figures 2 3 and 4 from which has a tendency to tilt e Shuttle and t0 deleit will be noted that it is provided with an opene ou y affect its p l ing 2! for the reception of the upper end 22 of It is the object of this invention to produce the picker staff The end of ihe picker desigu Dicker of such construction that it will to nated by reference numeral fi will" be referred part to the shuttle a guiding action constraining to as the m, Wall and this is provided with it to move in a Vertical Plane Connecting the a vertically elongated conical depression. The oppositely positioned pickers and at the S approximate shape of the shuttle has been inditime permit the shuttle to tilt relative to the cated by broken lines in Figures 2, 5 and 6 picker in the direction of the Plane of staff-Oscil- JO and its CI'OSS SECfiODEJ shape by the dotted circle lemon 25 in Figure 3.

The above and other h that may It will be observed from Figures 2 and 4 that f apparent as thls descl'lptloh proceeds a when the axis of the shuttle is substantially perattalhed by m of a' cnstruct1n that W111 pendicular to the axis of opening 2|, the shuttle now be described in detail and for this purpose J will be spaced a short distance from the upper reference will be had to the accompanying drawand lower Walls of the conical opening and at ing in which the invention has been illustrated, the Same time the sides of the Shuttle will m whtchz tact the side walls of the elongated opening sub- Figure l is a fragmentary view showing a porstantiany as Shown in F1 gure non of power .Opemted 100m shown? 40 Referring now in particular to Figure 3; it will shuttle m operatwe engagement wlth the plcker be observed that the trace of the end wall of the Figure 2 is a side view of apicker, to subk i th 11 f th fi stantially full scale, portions being broken away pm y th e 0 d opgmng 15 i i to better disclose the shape of the depression in compnsmg 6 upper an Q arcuate nes 6 a plane parallel with the picker stafi opening; whose centers have been designated by and the Figure 3 is an end elevation looking in the 7 sides of the opening are formed by straight lines direction of anew 3, in Figure 2; 2l which are tangent to the arcuate lines 26. It Figure 4 is a top plan view of the picker shown W111 be apparent f Fleures 2 h 3 that in Figure 2 with parts broken away and sho the shuttle can tilt relative to the picker in a in Section on line Figure 3; vertical plane but cannot tilt relative thereto in a horizontal plane. As a result of the shape of the opening, the picker will impart a definite directional impulse to the shuttle, which determines its path in a horizontal direction and Figure 6 is a view similar to that shown in at the same time the relative tilting movement Having described the invention what is claimed as new is:

A picker having its front wall provided with an elongated inwardly tapering opening, the trace of the front wall with the side of the opening forming a figure whose top and bottom are formed by substantially semi-circular arcs whose centers are positioned at spaced points on a vertical line, the arcs being joined by substantially straight lines parallel to the line joining the centers of curvature.

CHARLES WALTER YELM. 

